Fisher



Feb. 14, 1956 J. FISHER SUCTION LINE SCREEN Filed May 15, 1953 JoeFisher INVENTOR.

(W EH United States Patent SUCTION LINE SCREEN Joe Fisher, Fort Benton,Mont. Application May 15, 1953, Serial No. 355,387 1 Claim. (Cl.210-170) This invention relates to new and useful improvements andstructural refinements in screens for suction lines leading to pumps,such as are commonly employed in irrigation equipment, or the like, andthe principal object of the invention is to provide a screen of thecharacter hereindescribed, which may be conveniently and eflicientlyemployed to safeguard against the entry of mud, stones and other foreignmatter into the suction line.

An important feature of the invention resides in providing a guard whichsurrounds in spaced relation the bottom portion of the foraminous screenbody and thereby sustains the same out of contact with the muddy bottomof the reservoir or river from which the water is pumped.

Another important feature of the invention resides in the provision ofadjustable means for connecting the suction line to the screen.

Some of the advantages of the invention reside in the simplicity ofconstruction, in its efficient operation and in its adaptability toeconomical manufacture.

These together with other objects and advantages which will becomesubsequently apparent reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming a part hereof, whereinlike numerals refer to like parts throughout, and in which:

Figure 1 is a side elevational view of the invention;

Figure 2 is a longitudinal sectional view thereof;

Figure 3 is a sectional view, taken substantially in the plane of theline 3--3 of Figure 1;

Figure 4 is a sectional view, taken substantially in the plane of theline 4-4 in Figure 1; and

Figure 5 is a sectional view, taken substantially in the plane of theline 5-5 in Figure 1.

Like characters of reference are employed to designate like parts in thespecification and throughout the several views.

Referring now to the accompanying drawings in detail, the suction linescreen is designated generally by the reference character and embodiesin its construction a horizontally elongated, substantially cylindricalbody 12 having a foraminous side wall 14 and a pair of end walls 16, 18.

The end wall 16 is imperforate and is permanently secured to the sidewall 14, while the end wall 18 is provided substantially at the centerthereof with a circular opening 20 and is removably attached to the sidewall 14 by a plurality of screws 22.

A substantially semi-cylindrical, imperforate guard 24 encloses thelower portion of the body 12 in spaced relation therefrom as indicatedpermanently secured at one end thereof to an extension of the end wall16, while the other end of the guard is at 26, the guard 24 beingfastened by removable screws 28 to an extension on the end wall 18.

It will be apparent from the foregoing that when the screen ispositioned on the usually muddy bottom of a reservoir or river fromwhich Water is to be pumped, the guard 24 will effectively sustain thebody 12 out of contact with the muddy bottom but, nevertheless, waterwill still be able to completely surround the body 12 and enter theinterior thereof through the foraminous side wall 14 by virtue of thespace 26 existing between the guard 24 and the side wall 14.

A suction line or tube 30 extends through the opening 20 to the interiorof the body 12 and carries a clamp 32 which is attached by a fasteningelement 34 to a relatively short strap 36 which, in turn, is attached bya fastening element 38 to a bracket member 40 mounted on the outersurface of the end wall 18 above the opening 20.

The lower portion of the clamp 32 carries a fastening element 42 whichis receivable selectively in a plurality of apertures 44 provided in arelatively long strap 46, connected by a fastening element 48 to abracket member 50. The latter is secured to the outer surface of endwall 18 below the opening 20, as shown.

It will be apparent that by adjusting the clamp 32 with respect to thestrap 46, the angular relationship of the tube 30 to the body 12 may bevaried as desired.

From the foregoing, the construction and operation of the device will bereadily understood and further explanation is believed to beunnecessary. However, since numerous modifications and changes willreadily occur to those skilled in the art, it is not desired to limitthe invention to the exact construction shown and described, andaccordingly all suitable modifications and equivalents may be resortedto, falling within the scope of the appended claim.

What is claimed as new is as follows:

A suction line screen comprising a horizontally disposed cylindricalbody having a foraminous side wall and open ends, plates secured toopposite ends of the body for closing the same and having semi-circularedge extensions, one of said plates having an outlet opening therein, animperforate semi-cylindrical guard underlying and supporting said bodyand fixed to said extensions in spaced relation to said body tosupportsaid body in elevated position, a suction tube extending throughsaid opening into said body, a clamp suspending said tube and pivoted onsaid one plate for tilting to tilt said tube bodily, a strap extendingfrom said one plate beneath said clamp, and coacting devices on saidclamp and strap, respectively, for securing said clamp to said strap indifferent tilted positions.

References Cited in the file of this patent UNITED STATES PATENTS201,689 Leermo Mar. 26, 1878 557,735 Warren Apr. 7, 1896 558,131 WarrenApr. 14, 1896 1,116,234 Brown Nov. 3, 1914 1,816,600 McKinley et a1 July28, 1931 2,463,814 Skinner Mar. 8, 1949 2,668,624 Wahlin Feb. 9, 1954FOREIGN PATENTS 610,783 Germany Sept. 20,. 1932 862,916 France Mar. 19,1941

